Roof construction



April 20 1926.

c. MOEILLERY ROOF CONSTRUCTION Filed August a, 1925 Christ moe zzarPatented Apr. 20, 1926.

UNLTE'D STATEg CHRIST MOELLERQ OF DENVER, IOWA.

ROOF CONSTRUCTION.

Application filed August 8, 1925. Serial No. 48,997.

To all whom it may concern:

Be it known that-1', CHRIsT MUELLER, citi- Zen of the United States,residing at Denver,

in the county of Breiner and State of Iowa, have invented certain newand useful Improvements in Roof Constructions, of which the following isa specification.

My invention relates to improvements in roof constructions, and theobject of my improvement is to furnish a roofing of a composite natureadapted to be quickly and easily applied to a roof at a moderateexpense, having durability, and possessing the attributes of being bothwaterand fire-proof.

This object I have successfully accomplished by the means which arehereinafter described and claimed, and which are illustrated in theaccompanying drawings, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawings hereto annexed, Fig. 1 is a fragmental perspective viewofa roof composed according to my invention, with parts removed orbroken away. Fig. 2 is a cross section of the roof parts shown in saidFig. 1 with some additional parts supplied. Fig. 3 is a cross sectiontaken vertically across the peak of a roof to particularly disclose thepeak construction, the concrete matrix being omitted.

The numeral 1 denotes roof boards providing supporting-means for myimproved roofing constructions. The numeral 2 denotes marginal platessecured by nails 7 upon the opposite marginal parts of said boards 1 andhaving upwardly directed flanged parts 3 whose upper parts are bent overinwardly at 4-, providing channels between the parts 2 and 41-. Thenumeral 5 denotes angle-bar ribs secured by nails 6 across the boards 1horizontally to terminate within said channels 23-4 and appropriatelyspaced apart and from other channeled members (see'Fig. 2) shown at 8but of like shape to the first mentioned channeled members, althoughvaried in dimensions to. fit therein at their opposite ends. The numeral9 denotes a metallic netting supported upon the angle-bars 5 spacedabove the boards 1 and having end wires 10 bent down over oppositeanglebars as shown in Fig. 1 to be secured under tension by means ofstaples 11 driven into said 66 boards 1. p At the peak or ridge-pole ofthe roof, Fig.

3 showsone way of constructing the roof connections of the oppositeslopes. Beveled terminal pieces 12 of channeled shape are fitted withinthe upper channeled ends of the channeled plates 2 to fit together attheir beveled edges above the ridge-pole. A ridgeplate 13 may then befitted over the abutted parts of the roofing when complete and securedby nails 15 driven into the roof boards 1.

The roofing structure proper is a continuous plate or body of concreteor other initially plastic material worked through the inter- 7 sticesof the stretched netting 9 to rest upon the roof boards 1, to positionthe reinforcing netting substantially medially within the concrete. Theconcrete is worked into the channels 3 and 8 and should preferably be 7thick enough to overlap the tops of the inwardly bent parts 41 in asulficientmeasure as indicated in Fig. 1. A water-proofing. compositionlayer 17 may be then spread.

evenly and adhesively upon the concrete sheet when sufiicientlyhardened, and may be of any plastic substances of durability. Theroofing is thus both fireand waterproof, of even thickness throughout,and is prevented from cracking by means of the embedded wire netting 9which upholds it throughout.

This kind of roofing may be applied by unskilled labor, hence can berelatively inexpensive considering its durability, as the concretebecomes harder in time, while the top layer 17 may be easily renewedwhen worn down by the action of the elements.

I-Iaving'described my invention, what I claim as new, and desiretosecure by Letters Patent, is:

In a roof construction, roof supports, marginal inwardly directedrelatively high channel members secured thereon at two opposite sidesthereof, one flange of each'being wider than the other and secured uponsaid sup ports, cross-bars secured across the other opposite parts ofthe supports, lower than, and extending into the channels of saidchannelbars, a wire netting having tWo opposite ends crossing saidcrossbars, placed under tension and having their terminals secured tosaid supports at the outer bases of the cross- 3 bars said netting beingpositioned medially of and extending into the channels of saidchannel-bars, a ceinentitious layer filling the interspace of saidchanneland cross-bars to embed said netting, said cross-bars, the

fastenings of the netting therein, and a 10 waterproofing layer coveringthe upper surface of said vcementitious layer.

